jacob ward explains. >> mercemers, feefer, cough, shortness of breath. the reason this is so concern there is no specific treatments, no vaccine, no treatment for mers. they can't actually turning thing around completely. mers is a very dangerous affliction. of the 262 cases, 93 patients died. that's a 35% fatality rate. which makes mers more deadly than a case of smallpox in an unvaccinated person, or sars, mers is bad news. it's beyond the reach of medicine at the moment. all they can do with this particularity patient is isolate them, give them oxygen and hope nobody else came in close contact with them.